| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
06-30-2025, 11:28 PM
|
||||
|
||||
9779068 Cam specs vs '068' aftermarket
I have 2 1970s cams that I want to have reground. An Isky 280HYD and an unknown brand T257. Both core castings are 524 886. I do not know the profiles.
I'm trying to keep the stock appearance. '64 healthy stock build, .030 (at least) over, 716 heads, 10.5:1, Tri-power, MT, 3.23:1, ethanol-free pump gas. The 068 seems to be the popular choice for this build however, the specs vary slightly between manufacturers. Even the OEM specs differ on lift. Some literature shows OEM .414 while others show .407 lift with 1.5 rockers. Do the aftermarket mfgs. differ to be unique or to improve performance? Since I will give the profile which spec should I follow? Bullet Cams in Mississippi will use a Cam Doctor to see what I have then go from there. Hart's Machine Shop in Cecil, OH needs to know the desired profile to see if they have the 'template' to amtch. TIA |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Threaded Mode